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j SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> (916) 921-9600 • FAX (916) 921-0100 <br /> RESNA Industries Client Project ID Arco #6100, Tracy Sampled 12/14-16/92 <br /> 3164 Gold Camp Dr, Suite 200 Sample Matnx Soil Received Dec 21, 1992 <br /> Rancho Cordova, CA 95670 Analysis Method EPA 5030/8015/8020 Reported Dec 28, 1992 <br /> Attention David Stavarek First Sample # 212-0633 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I.D I.D. I D. I.D I.D. 10. <br /> mg/kg 212-0633 212-0634 212-0635 212-0636 212-0637 212-0638 <br /> S-115-827 S-40-827 S-16 5-B28 5-64828 S-71-B28 S-415-826 <br /> Purgeable <br /> Hydrocarbons 1 0 N D 8800 N D N D N D N D <br /> Benzene 00050 0 060 100 N D 0 095 0 018 021 <br /> Toluene 00050 00066 490 N D 0 028 0 020 0 029 <br /> Ethyl Benzene 00050 N D 160 N D N D N D N D <br /> Total Xylenes 00050 00053 730 N D 0 045 00092 0 072 <br /> Chromatogram Pattern Gas Gas - Gas Gas Gas <br /> Quality Control Data <br /> Report limit Multiplication Factor 1 0 500 1 0 1 0 1 0 1 0 <br /> Date Analyzed 12/22/92 12/22/92 12/22/92 12/22/92 12/22/92 12/22/92 <br /> Instrument Identification HP-1 HP-1 HP-1 HP-1 HP-1 HP-1 <br /> Surrogate Recovery, % 102 123 90 98 89 83 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting limit <br />�ISEQUOIA ANALYTICAL <br /> Michael R Giles <br /> Laboratory Director <br /> 212{)633 ass <1 <br />